You have not given enough information. "VA" is equal to volts times amps (and sometimes, when three phase systems are involved, you toss in a factor of 1.732). You didn't tell us the voltage level. Also, it makes a difference if the load is continuous or non-continuous (i.e., will it run for more than 3 hours at a time).
Have you made an attempt to look this up in the code yourself? We generally prefer to see students try the problems themselves first. If you have tried, and can't find an answer, the at least tell us where you looked.
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